Hacker (computing)

Hacker (computing)

In computing, hacker has several meanings: [cite web|url=http://webzone.k3.mah.se/k3jolo/HackerCultures/origins.htm|title=webzone.k3.mah.se/k3jolo/HackerCultures/origins.htm ]

* A community of enthusiast computer programmers and systems designers, originated in the 1960s around the Massachusetts Institute of Technology (MIT)'s Tech Model Railroad Club (TMRC) and MIT Artificial Intelligence Laboratory.Fact|date=August 2008 This community is notable for launching the free software movement. The World Wide Web and the Internet itself are also hacker artifacts. [http://www.catb.org/~esr/faqs/hacker-howto.html#what_is] The Request for Comments (RFC) 1392 [http://www.rfc-editor.org/rfc/rfc1392.txt] amplifies this meaning as "a person who delights in having an intimate understanding of the internal workings of a system, computers and computer networks in particular".
* The hobbyist home computing community, focusing on hardware in the late 1970s (e.g. the Homebrew Computer Club [Levy, part 2] ) and on software (computer games, [Levy, part 3] software cracking, the demoscene) in the 1980s/1990s.
* People engaged in circumvention of computer security. This primarily refers to unauthorized remote computer break-ins via a communication network such as the Internet ("black hats"), but also includes those who debug or fix security problems ("white hats"). It has been argued that its earliest known meaning in the computer contextFred Shapiro: [http://listserv.linguistlist.org/cgi-bin/wa?A2=ind0306B&L=ads-l&P=R5831&m=24290 Antedating of "Hacker"] . "American Dialect Society Mailing List" (13. June 2003)] referred to an unauthorized user of the telephone company network (now called a phreaker).Today, mainstream usage mostly refers to computer criminals, due to the mass media usage of the word since the 1980s. This includes script kiddies, people breaking into computers using programs written by others, with very little knowledge about the way they work. This usage is so much predominant in the general public that a large segment of it is unaware that different meanings also exist.

This article compares and contrasts the three meanings defined above. There are specific articles about each one of them at Hacker (computer security), Hacker (programmer subculture), and Hacker (hobbyist), respectively. While the use of the word by hobbyist hackers is acknowledged by all three subcultures, and the computer security hackers accept all uses of the word, free software hackers consider the computer intrusion related usage incorrect, and refer to security breakers as “crackers”.

Hackers — including Steve Jobs, Steve Wozniak and Bill Gates — created the personal computing industry.cite web |url=http://w2.eff.org/Misc/Publications/Bruce_Sterling/cyberview_91.report |first=Bruce |last=Sterling |authorlink=Bruce Sterling |title=cyberview_91.report |quote="hackers" had built the entire personal computer industry. Jobs was a hacker, Wozniak too, even Bill Gates, the youngest billionaire in the history of America -- all "hackers." ]

Hacker definition controversy

The terms hacker and hack are marked by contrasting positive and negative connotations. Computer programmers often use the words "hacking" and "hacker" to express admiration for the work of a skilled software developer, but may also use them in a negative sense to describe the production of inelegant kludges. Some frown upon using "hacking" as a synonym for security cracking -- in distinct contrast to the larger world, in which the word "hacker" is typically used to describe someone who "hacks into" a system by evading or disabling security measures.

Controversy and ambiguity

While "hack" was originally more used as a verb for "messing about" with (e.g. "I hack around with computers"), the meaning of the term has shifted over the decades since it first came into use in a computer context. As usage has spread more widely, the primary meaning of newer users of the word has shifted to one which conflicts with the original primary emphasis.

Currently, "hacker" is used in two main ways, one pejorative and one complimentary. In popular usage and in the media, it most often refers to computer intruders or criminals, with associated pejorative connotations. (For example, "An Internet 'hacker' broke through state government security systems in March.") In the computing community, the primary meaning is a complimentary description for a particularly brilliant programmer or technical expert. (For example, "Linus Torvalds, the creator of Linux, is considered by some to be a genius hacker.") A large segment of the technical community insist the latter is the "correct" usage of the word (see the Jargon File definition below).

The mainstream media's current usage of the term may be traced back to the early 1980s (see History). When the term was introduced to wider society by the mainstream media in 1983, even those in the computer community referred to computer intrusion as "hacking", although not as the exclusive use of that word. In reaction to the increasing media use of the term exclusively with the criminal connotation, the computer community began to differentiate their terminology. Several alternative terms such as "black hat" and "cracker" were coined in an effort to distinguish between those performing criminal activities, and those whose activities were the legal ones referred to more frequently in the historical use of the term "hack". Analogous terms such as "white hats" and "gray hats" developed as a result. However, since network news use of the term pertained primarily to the criminal activities despite this attempt by the technical community to preserve and distinguish the original meaning, the mainstream media and general public continue to describe computer criminals with all levels of technical sophistication as "hackers" and does not generally make use of the word in any of its non-criminal connotations.

As a result of this difference, the definition is the subject of heated controversy. The wider dominance of the pejorative connotation is resented by many who object to the term being taken from their cultural jargon and used negatively [ [http://tmrc.mit.edu/hackers-ref.html TMRC site] , [http://web.archive.org/web/20060503072049/http://tmrc.mit.edu/hackers-ref.html Archive.org cache] ] , including those who have historically preferred to self-identify as hackers. Many advocate using the more recent and nuanced alternate terms when describing criminals and others who negatively take advantage of security flaws in software and hardware. Others prefer to follow common popular usage, arguing that the positive form is confusing and unlikely to become widespread in the general public. A minority still stubbornly use the term in both original senses despite the controversy, leaving context to clarify (or leave ambiguous) which meaning is intended. It is noteworthy, however, that the positive definition of hacker was widely used as the predominant form for many years before the negative definition was popularized.

"Hacker" can therefore be seen as a shibboleth, identifying those who use the technically-oriented sense (as opposed to the exclusively intrusion-oriented sense) as members of the computing community.

A possible middle ground position has been suggested, based on the observation that "hacking" describes a collection of skills which are used by hackers of both descriptions for differing reasons. The analogy is made to locksmithing, specifically picking locks, which — aside from its being a skill with a fairly high tropism to 'classic' hacking — is a skill which can be used for good or evil. The primary weakness of this analogy is the inclusion of script kiddies in the popular usage of "hacker", despite the lack of an underlying skill and knowledge base.


A timeline of the noun "hack" and etymologically related terms as they evolved in historical English:
* c. 1700, originally, "person hired to do routine work," short for hackney "an ordinary horse" (c.1300) later, coach for hire, and taxicab driver (hackie).
* Early 20th century: "hack" is one of many slang terms in use by railroaders for a train's caboose [ "A Glossary of Railroad Terms", American Speech, volume 18 number 3 (October 1943), pp. 161-170; cited page 163. ] . Subsequent spread of this usage from professional rail workers to model rail hobbyists is likely, but not proven.
* 1950s: amateur radio enthusiasts defined the term "hacking" as creatively tinkering to improve performance.
* 1959: "hack" is defined in MIT's Tech Model Railroad Club Dictionary as "1) an article or project without constructive end; 2) a project undertaken on bad self-advice; 3) an entropy booster; 4) to produce, or attempt to produce, a hack(3)." "hacker" is defined as "one who hacks, or makes them." Much of the TMRC's jargon is later imported into early computing culture.
* 1963: The first recorded reference to hackers in the computer sense is made in The Tech (MIT Student Magazine). [Citation|title=The Origin of "Hacker"|url=http://imranontech.com/2008/04/01/the-origin-of-hacker/]
* 1972: Stewart Brand publishes "S P A C E W A R: Fanatic Life and Symbolic Death Among the Computer Bums" in "Rolling Stone", an early piece describing computer culture. In it, Alan Kay is quoted as saying "A true hacker is not a group person. He's a person who loves to stay up all night, he and the machine in a love-hate relationship... They're kids who tended to be brilliant but not very interested in conventional goals [...] It's a term of derision and also the ultimate compliment."
* 1980: The August issue of "Psychology Today" prints (with commentary by Philip Zimbardo) "The Hacker Papers", an excerpt from a Stanford Bulletin Board discussion on the addictive nature of computer use.
* 1982: In the film TRON, Kevin Flynn (Jeff Bridges) describes his intentions to break into ENCOM's computer system, saying "I've been doing a little hacking here". CLU is the software he uses for this.
* 1983: The movie WarGames, featuring a computer intrusion into NORAD, is released. A gang of 6 teenagers is caught breaking into dozens of computer systems, including that of Los Alamos National Laboratory.Citation|last=Elmer-DeWitt|first=Philip|title=The 414 Gang Strikes Again|newspaper=Time magazine|pages=p. 75|year=1983|date=August 29, 1983|url=http://www.time.com/time/magazine/article/0,9171,949797,00.html] "Newsweek" features the cover story "Beware: Hackers at play."Citation|title=Beware: Hackers at play|newspaper=Newsweek|pages=pp. 42–46,48|year=1983|date=September 5, 1983] First Usenet post on the use of the term "hacker" in the media (CBS News) to mean computer criminal. [cite newsgroup|newsgroup=net.misc, net.followup|author=j...@uvacs. UUCP|date=Mon, 19-Sep-83 13:50:25 EDT|title=for hack ( er ) s who want to complain to CBS|url=http://groups.google.com/group/net.misc/msg/5f706369944b69d6] Pressured by media coverage of computer intrusions, Congress begins work on new laws for computer security. [David Bailey, "Attacks on Computers: Congressional Hearings and Pending Legislation," sp, p. 180, 1984 IEEE Symposium on Security and Privacy, 1984.]
* 1984: Steven Levy publishes "." The book publicizes, and perhaps originates the phrase "Hacker Ethic" and gives a codification of its principles.
* 1988: "Stalking the Wily Hacker", an article by Clifford Stoll appears in the May 1988 issue of the "Communications of the ACM" and uses the term "hacker" in the sense of a computer criminal. Later that year, the release by Robert Tappan Morris, Jr. of the so-called Morris worm provoked the popular media to spread this usage.
* 1989: "The Cuckoo's Egg" by Clifford Stoll is published, and its popularity further entrenches the term in the public's consciousness.

Contemporary use

The modern, computer-related use of the term is considered likely rooted in the goings on at the Massachusetts Institute of Technology (MIT) in the 1960s, long before computers became common; the word "hack" was local slang which had a large number of related meanings. One was a simple, but often inelegant, solution to a problem. It also meant any [http://hacks.mit.edu/ clever prank] perpetrated by MIT students; logically the perpetrator was a hacker. To this day the terms "hack" and "hacker" are used in several ways at MIT, without necessarily referring to computers. When MIT students surreptitiously put a [http://hacks.mit.edu/Hacks/by_year/1994/cp_car/ fake police car] atop the dome on MIT's Building 10, that was a hack, and the students involved were therefore hackers. Another type of hacker — one who explores undocumented or unauthorized areas in buildings — is now called a reality hacker or urban spelunker.

The term was fused with computers when members of the Tech Model Railroad Club started working with a Digital Equipment Corporation PDP-1 computer and applied local model railroad slang to computers.

The earliest known use of the term in this manner is from the 20 November 1963 issue of The Tech, the student paper of MIT:

Many telephone services have been curtailed because of so-called hackers, according to Prof. Carlton Tucker, administrator of the Institute phone system. […] The hackers have accomplished such things as tying up all the tie-lines between Harvard and MIT, or making long-distance calls by charging them to a local radar installation. One method involved connecting the PDP-1 computer to the phone system to search the lines until a dial tone, indicating an outside line, was found. […] Because of the 'hacking', the majority of the MIT phones are 'trapped'.

Originally, the term "hack" was applied almost exclusively to programming or electrical engineering, but it has come to be used in some circles for almost any type of clever circumvention, in phrases such as "hack the media", "hack your brain" and "hack your reputation".

Negative usage in engineering

Another meaning of the term "hack", similar to kludge and distinct from both the positive and security-related meanings discussed above, derives from the everyday English sense "to cut or shape by or as if by crude or ruthless strokes" [Merriam-Webster] . In other words to "hack" at an original creation, as if with an axe, is to force-fit it into being usable for a task not intended by the original creator, and a "hacker" would be someone who does this habitually. (The original creator and the hacker may be the same person.)

This usage is common in both programming (as demonstrated by a Google code search for "HACK" [http://www.google.com/codesearch?q=HACK] ) and engineering. In programming, hacking in this sense appears to be tolerated and seen as a necessary compromise in many situations. In non-software engineering, the culture is less tolerant of unmaintainable solutions, even when intended to be temporary, and describing someone as a "hacker" might imply that they lack professionalism. In this sense, the term has no real positive connotations, except for the idea that the hacker is capable of doing modifications that allow a system to work in the short term, and so has some sort of marketable skills. There is always, however, the understanding that a more skillful, or technical, logician could have produced successful modifications that would not be considered a "hack-job".

The definition is similar to other, non-computer based, uses of the term "hack-job". For instance, a professional modification of a production sports car into a racing machine would not be considered a hack-job, but a cobbled together backyard mechanic's result could be. Even though the outcome of a race of the two machines could not be assumed, a quick inspection would instantly reveal the difference in the level of professionalism of the designers.

Computer security hackers

In computer security, a hacker is someone who focuses on security mechanisms of computer and network systems. While including those who endeavor to strengthen such mechanisms, it is more often used by the mass media and popular culture to refer to those who seek access despite these security measures. That is, the media portrays the 'hacker' as a villain. Nevertheless, parts of the subculture see their aim in correcting security problems and use the word in a positive sense. They operate under a code, which acknowledges that breaking into other people's computers is bad, but that discovering and exploiting security mechanisms and breaking into computers is still an interesting activity that can be done ethically and legally. Accordingly, the term bears strong connotations that are favorable or pejorative, depending on the context.

The subculture around such hackers is termed network hacker subculture, hacker scene or computer underground. It initially developed in the context of phreaking during the 1960s and the microcomputer BBS scene of the 1980s. It is implicated with "" and the "alt.2600" newsgroup.

By 1983, hacking in the sense of breaking computer security had already been in use as computer jargon, [See the [http://www.catb.org/jargon/oldversions/jarg1-81-MM-DD.txt 1981 version of the "Jargon File"] , entry "hacker", last meaning.] but there was no public awareness about such activities. [cite paper|title=Computer hacking: Where did it begin and how did it grow?|publisher=WindowSecurity.com|date=October 16, 2002|url=http://www.windowsecurity.com/whitepapers/Computer_hacking_Where_did_it_begin_and_how_did_it_grow_.html] However, the release of the movie "WarGames" that year raised the public belief that computer security hackers (especially teenagers) could be a threat to national security. This concern became real when a gang of teenage hackers in Milwaukee, Wisconsin known as The 414s broke into computer systems throughout the United States and Canada, including those of Los Alamos National Laboratory, Sloan-Kettering Cancer Center and Security Pacific Bank. The case quickly grew media attention, [Citation|newspaper=Detroit Free Press|year=1983|date=September 27, 1983] and 17-year-old Neal Patrick emerged as the spokesman for the gang, including a cover story in "Newsweek" entitled "Beware: Hackers at play", with Patrick's photograph on the cover. The Newsweek article appears to be the first use of the word "hacker" by the mainstream media in the pejorative sense.

As a result of news coverage, congressman Dan Glickman called for an investigation and new laws about computer hacking. [cite web|publisher=Washington Post|url=http://www.washingtonpost.com/wp-dyn/articles/A50606-2002Jun26.html|year=2002|accessdate=2006-04-14|title=Timeline: The U.S. Government and Cybersecurity] Neal Patrick testified before the U.S. House of Representatives on September 26, 1983 about the dangers of computer hacking, and six bills concerning computer crime were introduced in the House that year. [David Bailey, "Attacks on Computers: Congressional Hearings and Pending Legislation," sp, p. 180, 1984 IEEE Symposium on Security and Privacy, 1984.] As a result of these laws against computer criminality, white hat, grey hat and black hat hackers try to distinguish themselves from each other, depending on the legality of their activities.

The programmer subculture of hackers

The computer security use is contrasted by the different understanding of hacker as a person who follows a spirit of playful cleverness and loves programming. It is found in an originally academic movement unrelated to computer security and most visibly associated with free software and open source. It also has a hacker ethic, based on the idea that writing software and sharing the result on a voluntary basis is a good idea, and that information should be free, but that it's not up to the hacker to make it free by breaking into private computer systems. Academic hackers disassociate from the mass media's pejorative use of the word 'hacker' referring to computer security, and usually prefer the term 'cracker' for that meaning.

In this hacker culture, a computer hacker is a person who enjoys designing software and building programs with a sense for aesthetics and playful cleverness. The term hack in this sense can be traced back to "describe the elaborate college pranks that...students would regularly devise" (Levy, 1984 p.10). To be considered a 'hack' was an honour among like-minded peers as "to qualify as a hack, the feat must be imbued with innovation, style and technical virtuosity" (levy, 1984 p.10)

According to Eric S. Raymond, [Eric S. Raymond: [http://www.catb.org/~esr/writings/hacker-history/hacker-history.html A Brief History of Hackerdom] (2000)] the Open source and Free Software hacker subculture developed in the 1960s among ‘academic hackers’ [cite web|url=http://www.faqs.org/docs/artu/ch20s06.html|title=www.faqs.org/docs/artu/ch20s06.html ] working on early minicomputers in computer science environments in the United States. After 1969 it fused with the technical culture of the pioneers of the Arpanet. The PDP-10 machine AI at MIT, which was running the ITS operating system and was connected to the Arpanet, provided an early hacker meeting point. After 1980 the subculture coalesced with the culture of Unix, and after 1987 with elements of the early microcomputer hobbyists that themselves had connections to radio amateurs in the 1920s. Since the mid-1990s, it has been largely coincident with what is now called the free software and open source movement.

Many programmers have been labeled "great hackers," [cite web | url=http://www.paulgraham.com/gh.html | title=Great Hackers | author=Graham, Paul | year=2004] but the specifics of who that label applies to is a matter of opinion. Certainly major contributors to computer science such as Edsger Dijkstra and Donald Knuth, as well as the inventors of popular software such as Linus Torvalds (Linux), and Dennis Ritchie and Ken Thompson (the C programming language) are likely to be included in any such list; see also List of programmers. People primarily known for their contributions to the consciousness of the academic hacker culture include Richard Stallman, the founder of the free software movement and the GNU project, president of the Free Software Foundation and author of the famous Emacs text editor as well as the GNU Compiler Collection (GCC), and Eric S. Raymond, one of the founders of the Open Source Initiative and writer of the famous text The Cathedral and the Bazaar and many other essays, maintainer of the Jargon File (which was previously maintained by Guy L. Steele, Jr.).

Within the academic hacker culture, the term hacker is also used for a programmer who reaches a goal by employing a series of modifications to extend existing code or resources. In this sense, it can have a negative connotation of using kludges to accomplish programming tasks that are ugly, inelegant, and inefficient. This derogatory form of the noun "hack" is even used among users of the positive sense of "hacker" (some argue that it should not be, due to this negative meaning; others argue that some kludges can, for all their ugliness and imperfection, still have "hack value"). In a very universal sense, hacker also means someone who makes things work beyond perceived limits in a clever way in general. [ [http://catb.org/~esr/faqs/hacker-howto.html#what_is How To Become A Hacker ] ] That is, people who apply the creative attitude of software hackers in fields other than computing. This includes even activities that predate computer hacking, for example reality hackers. [See for example the [http://hacks.mit.edu/ MIT Gallery of Hacks] ] More recent examples of this usage are wetware hackers and media hackers. According to the "Jargon File" the word hacker was used in a similar meaning among radio amateurs already in the 1950s. [ [http://www.catb.org/jargon/html/H/hacker.html hacker ] ]

The culture sometimes uses jargon which is "incomprehensible to outsiders"cite book |title=Hackers: Heroes of the Compuer Revolution |last=Levy |first=Steven |authorlink=Steven Levy|year=2001 |origyear=1984|publisher=Penguin Books|isbn=0141000511 |pages=9 ] . Examples are 'losing' "when a piece of equipment is not working" and 'munged' "when a piece of equipment is ruined".

Home computer hackers

In a third meaning, hacker refers to computer hobbyists who push the limits of their software or hardware. The home computer hacking subculture relates to the hobbyist home computing of the late 1970s, beginning with the availability of MITS Altair. An influential organization was the Homebrew Computer Club.

The areas that did not fit together with the academic hacker subculture focus mainly on commercial computer and video games, software cracking and exceptional computer programming (demo scene). Also of interest to some members of this group is the modification of computer hardware and other electronic devices, see modding.

Overlaps and differences

The main basic difference between academic and computer security hackers is their mostly separate historical origin and development. However, the "Jargon File" reports that considerable overlap existed for the early phreaking at the beginning of the 1970s. An article from MIT's student paper "The Tech" used the term hacker in this context already in 1963 in its pejorative meaning for someone messing with the phone system. The overlap quickly started to break when people joined in the activity who did it in a less responsible way. [ [http://www.catb.org/~esr/jargon/html/P/phreaking.html phreaking ] ] This was the case after the publication of an article exposing the activities of Draper and Engressias.

According to Raymond, academic hackers usually work openly and use their real name, while computer security hackers prefer secretive groups and identity-concealing aliases. Also, their activities in practice are largely distinct. The former focus on creating new and improving existing infrastructure (especially the software environment they work with), while the latter primarily and strongly emphasize the general act of circumvention of security measures, with the effective use of the knowledge (which can be to report and help fixing the security bugs, or exploitation for criminal purpose) being only rather secondary. The most visible difference in these views was in the design of the MIT hackers' Incompatible Timesharing System, which deliberately didn't have any security measures.

There are some subtle overlaps, however, since basic knowledge about computer security is also common within the academic hacker community. For example, Ken Thompson noted during his 1983 Turing Award lecture that it is possible to add code to the UNIX "login" command that would accept either the intended encrypted password or a particular known password, allowing a back door into the system with the latter password. He named his invention the "Trojan horse." Furthermore, Thompson argued, the C compiler itself could be modified to automatically generate the rogue code, to make detecting the modification even harder. Because the compiler is itself a program generated from a compiler, the Trojan horse could also be automatically installed in a new compiler program, without any detectable modification to the source of the new compiler. However, Thompson disassociated himself strictly from the computer security hackers: "I would like to criticize the press in its handling of the 'hackers,' the 414 gang, the Dalton gang, etc. The acts performed by these kids are vandalism at best and probably trespass and theft at worst. ... I have watched kids testifying before Congress. It is clear that they are completely unaware of the seriousness of their acts." [cite journal|first=Ken|last=Thompson|title=Reflections on Trusting Trust|journal=Communications of the ACM|volume=27|issue=8|date=August 1984|url=http://www.ece.cmu.edu/~ganger/712.fall02/papers/p761-thompson.pdf]

The academic hacker community sees secondary circumvention of security mechanisms as legitimate if it is done to get practical barriers out of the way for doing actual work. In special forms, that can even be an expression of playful cleverness. [ [http://www.gnu.org/philosophy/rms-hack.html The Hacker Community and Ethics: An Interview with Richard M. Stallman - GNU Project - Free Software Foundation (FSF) ] ] However, the systematic and primary engagement in such activities is not one of the actual interests of the academic hacker subculture and it doesn't have significance in its actual activities, either. [http://www.catb.org/~esr/jargon/html/C/cracker.html cracker ] ] A further difference is that, historically, academic hackers were working at academic institutions and used the computing environment there. In contrast, the prototypical computer security hacker had access exclusively to a home computer and a modem. However since the mid-1990s, with home computers that could run Unix-like operating systems and with inexpensive internet home access being available for the first time, many people from outside of the academic world started to take part in the academic hacking subculture.

Since the mid-1980s, there are some overlaps in ideas and members with the computer security hacking community. The most prominent case is Robert T. Morris, who was a user of MIT-AI, yet wrote the Morris worm. The "Jargon File" hence calls him "a true hacker who blundered". [ [http://www.catb.org/jargon/html/pt03.html#bibliography Part III. Appendices ] ] Nevertheless, members of the academic subculture have a tendency to look down on and disassociate from these overlaps. They commonly refer disparagingly to people in the computer security subculture as crackers, and refuse to accept any definition of hacker that encompasses such activities. The computer security hacking subculture on the other hand tends not to distinguish between the two subcultures as harshly, instead acknowledging that they have much in common including many members, political and social goals, and a love of learning about technology. They restrict the use of the term cracker to their categories of script kiddies and black hat hackers instead.

All three subcultures have relations to hardware modifications. In the early days of network hacking, phreaks were building blue boxes and various variants. The academic hacker culture has stories about several hardware hacks in its folklore, such as a mysterious 'magic' switch attached to a PDP-10 computer in MIT's AI lab, that, when turned off, crashed the computer. [ [http://www.catb.org/~esr/jargon/html/magic-story.html A Story About ‘Magic' ] ] The early hobbyist hackers built their home computers themselves, from construction kits. However, all these activities have died out during the 1980s, when the phone network switched to digitally controlled switchboards, causing network hacking to shift to dialing remote computers with modems, when pre-assembled inexpensive home computers were available, and when academic institutions started to give individual mass-produced workstation computers to scientists instead of using a central timesharing system. The only kind of widespread hardware modification nowadays is case modding.

An encounter of the academic and the computer security hacker subculture occurred at the end of the 1980s, when a group of computer security hackers, sympathizing with the Chaos Computer Club (who disclaimed any knowledge in these activities), broke into computers of American military organizations and academic institutions. They sold data from these machines to the Soviet secret service, one of them in order to fund his drug addiction. The case could be solved when Clifford Stoll, a scientist working as a system administrator, found ways to log the attacks and to trace them back (with the help of many others). "23", a German film adaption with fictional elements, shows the events from the attackers' perspective. Stoll described the case in his book "The Cuckoo's Egg" and in the TV documentary "The KGB, the Computer, and Me" from the other perspective. According to Eric S. Raymond, it "nicely illustrates the difference between 'hacker' and 'cracker'. Stoll's portrait of himself, his lady Martha, and his friends at Berkeley and on the Internet paints a marvelously vivid picture of how hackers and the people around them like to live and how they think." [ [http://catb.org/jargon/html/pt03.html Part III. Appendices ] ]

See also

* Hack (technology)
* History of free software
* Timeline of computer security hacker history
* Hacker Ethic


Related books

* Michael Hasse: [http://www.neue-information.de/fileadmin/neue-information/pdf/hasse_hacker.pdf Die Hacker: Strukturanalyse einer jugendlichen Subkultur] (1994)
* Alan Liu, "The Laws of Cool: Knowledge Work and the Culture of Information", University of Chicago Press pp. 396-398 (2004)

Computer security hacking books

* Logik Bomb: [http://insecure.org/stf/hackenc.txt Hacker's Encyclopedia] (1997)
* Katie Hafner & John Markoff: "Cyberpunk: Outlaws and Hackers on the Computer Frontier" (Simon & Schuster, 1991), ISBN 0-671-68322-5.

Free Software/Open Source hacking books

* Eric S. Raymond, Guy L. Steele (Eds.): "The New Hacker's Dictionary" (The MIT Press, 1996), ISBN 0262680920
*Turkle, Sherry (1984),"The Second Self: Computers and the Human Spirit" , New Edition: MIT Press 2005, ISBN 0262701111
* Karim R. Lakhani, Robert G Wolf: [http://freesoftware.mit.edu/papers/lakhaniwolf.pdf Why Hackers Do What They Do: Understanding Motivation and Effort in Free/Open Source Software Projects] . In J. Feller, B. Fitzgerald, S. Hissam, and K. R. Lakhani(Eds.): "Perspectives on Free and Open Source Software" (MIT Press, 2005)
* Himanen, Pekka. 2001. "The Hacker Ethic and the Spirit of the Information Age." Random House. ISBN 0-375-50566-0

External links

* [http://chaosradio.ccc.de/cri011.html Interview with Steven Levy] : About the different hacker subcultures and their relations.
* [http://www.paulgraham.com/gba.html The Word "Hacker"]
* [http://www.cs.berkeley.edu/~bh/hacker.html What is a Hacker?, Brian Harvey]
* [http://www.schneier.com/blog/archives/2006/09/what_is_a_hacke.html "What is a Hacker?"] by Bruce Schneier
* [http://www.maniacworld.com/original-hackers.htm Steve Wozniak Discusses the original meaning of hacker]

Computer security hacking weblinks

* [http://www.casoabierto.com/Reportajes/Investigacion/The-Ten-Biggest-Legends-of-the-Hacker-Universe.html The Ten Biggest Legends of the Hacker Universe]
* [http://web.archive.org/web/20010708111438/http://www.claws-and-paws.com/personal/hacking/17steps.shtml Hacking in 17 easy steps] , by Doug Mclean 1995.

Free Software/Open Source hacking weblinks

* [http://www.catb.org/~esr/faqs/hacker-howto.html How To Become A Hacker] by Eric S. Raymond, open source perspective
* [http://gnu.mirrorspace.org/philosophy/rms-hack.html The Hacker Community and Ethics] : An interview with Richard M. Stallman, 2002

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